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Finding the Fourth Proportional to 2,684.03, 3,703.94 and 1,690.61

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Solution

The fourth proportional to 2,684.03, 3,703.94 and 1,690.61 is: 2,333.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,684.03 : 3,703.94 = 1,690.61 : x
  2. Step 2: Convert to fraction form
    2,684.03/3,703.94 = 1,690.61/x
  3. Step 3: Cross multiply
    2,684.03x = 3,703.94 × 1,690.61
  4. Step 4: Simplify right side
    2,684.03x = 6,261,891.03
  5. Step 5: Solve for x
    x = 6,261,891.03/2,684.03
  6. Step 6: Final answer
    x = 2,333.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.